Saturday, 31 January 2015

Sunday, 25 January 2015

Problems on Permutations and Combinations asked in various placements

1) In how many ways can the team members be arranged for the team picture if all the males are always together and if the team comprises of 7 males and 6 females?   a) 13!   b) 7! 7!   c) 7! 6!   d) 14! 2) A written exam consists of 6 questions with the answer options as yes/no/none. In...

Saturday, 24 January 2015

Problems on H.C.F and L.C.M asked in various placements

--> H.C.F = (H.C.F of Numerators)/(L.C.M of Denominators) --> L.C.M = (L.C.M of Numerators)/(H.C.F of Denominators) --> Two numbers are said to be co-primes. If their H.C.F is 1. --> The product of Least powers of common prime factors gives H.C.F. --> The product of highest powers of all...

Friday, 23 January 2015

Thursday, 22 January 2015

Wednesday, 21 January 2015

Friday, 9 January 2015

Tuesday, 6 January 2015